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Ionic Cookbook

You're reading from   Ionic Cookbook Recipes to create cutting-edge, real-time hybrid mobile apps with Ionic

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Product type Paperback
Published in Apr 2018
Publisher
ISBN-13 9781788623230
Length 390 pages
Edition 3rd Edition
Languages
Tools
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Author (1):
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Indermohan Singh Indermohan Singh
Author Profile Icon Indermohan Singh
Indermohan Singh
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Table of Contents (12) Chapters Close

Preface 1. Creating Our First App with Ionic FREE CHAPTER 2. Adding Ionic Components 3. Extending Ionic with Angular Building Blocks 4. Validating Forms and Making HTTP Requests 5. Adding Animation 6. User Authentication and Push Notifications 7. Supporting Device Functionalities Using Ionic Native 8. Theming the App 9. Advanced Topics 10. Publishing the App for Different Platforms 11. Other Books You May Enjoy

Creating a custom pipe

Pipes are also a feature of Angular and are not specific to Ionic. If you are familiar with Angular 1, a pipe is exactly the same thing as a filter. The main reason you might want to use pipes is to display data in a different format in the view. You don't want to change the actual value in the component. This makes things very convenient because you don't have to decide on the specific format within the code while leaving flexibility in the view layer. Here is a list of some useful built-in pipes (from https://angular.io/docs/ts/latest/api/#!?apiFilter=pipe):

  • AsyncPipe
  • DatePipe
  • NumberPipe
  • SlicePipe
  • DecimalPipe
  • JsonPipe
  • PercentPipe
  • UpperCasePipe
  • LowerCasePipe
  • CurrencyPipe
  • ReplacePipe

In this section, you will learn how to create a custom pipe using the @Pipe decorator. The following is a screenshot of the app:

While the app interface is very...

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